Valve apparatus por eydraulic and steam motors



(No Model.) 2 Shets--Sheet 1.

` 0.1101111. VALVE APPARATUS POR HYDRAULIC AND STEAM MOTORS. 110.2491150I Patented 1\Iw.1,1881.` 111cm. 11H12.

N. PETERS. Pnamumagnphu, washingm n. c,

UNITED STATES PATENT (31u-IceN CHARLES ROUX, OF PARIS, FRANCE.

APPARATUS FOR HYDRAULIC ANDSTEAM MOTORS.v

SPECIFICATION forming part of Letters Patent No. 249,150, dated November 1, 1881.

1 Application led July 26, 1881. (No model.) Patented in France April 16, 18.80,

` To all whom 'it may' concern:

Beit known that I, CHARLES RoUX,of Paris, in the Republic of France, have invented certain new and useful Improvements in Valve Apparatus for use in Hydraulic Motors, Direct-Acting Steam-Pumps, and otherMachines',ofwhich the following specification is a full description. The invention has for its object to dispense with the usual. mechanical devicessuch as sliding or jointed rods for imparting motion to V the valves; and it consists in an arrangement of cylinders and pistons whereby1 the pressure ofthe uid itself is made to control the inlet and outlet ports. The said cylindersand pistons are arranged in series and operate successively, being moved each by the pressure of fluid from the preceding cylinder and controling the inlet and outlet of the succeeding one.

This valve apparatus is applicable tovarious kinds of machines driven by water, steam, compressed air, or other tluid. In the accompanying drawings it is shown applied to a watermeter, a hydraulic motor, and a direct-actin g steam-pump.

Figures 1, 2, and 3 represent a water-meter provided with the improved valve apparatus, Fig. 1 being an elevation; Fig. 2, a transverse section on line my, Fig. 1; and Fig. 3, a longitudinal section on line a b c ol c f, developed.v

Figs. 4 and 5 represent a hydraulic motor, Fig. 4 being a longitudinal, and Fig. 5 a cross, section; and Figs. 6 and 7 are views ot' a directacting pump, Fig. 6 being a development of a longitudinal section on 'line k lp q h, Fjg. 7, and the latter a cross-section. The valve apparatus is substantially the same in `all the figures. Y

The threepistons S M I work in their appropriate cylinders, which are divided into several compartments by the piston-heads-the main cylinder into three compartments by the two heads of piston I, and the others each into live compartmentsby thefour heads of their respective pistons S M.

and constant communication by suitable passages with the inlet K. The central compartments of all three cylinders are in direct and constant communication withV the outlet R. The port o of the inain cylinder is connected by a passage with the compartment P at one The compartments V V Vll V are in direct lished alternately with inlet K andl outlet R,

according to the position of' the piston M, and the compartments m P at the ends of said piston are in like manner alternately put in communication with the inlet K and outlet R by the piston S. The passages leading from the compartments at ends ot' pistons I and M are clearly shown in Figs. 3, 4, and 6.

The operation is as follows: The fluid entering atK ills the compartments V V Vl V. Its pressure being balanced, it is without effect upon the pistons S M. Taking the apparatus in the position shown in Figs. Sand 6, the lluid tlows from the `compartment V through the portal into the main cylinder and forces the piston `I to the right. It also lls the compartment mfrom V and holds the piston M inthe position shown. As the piston I moves to the right it eXpels the fluid through the port 'n' and outlet R. At or near the end of its stroke it uncovers the port 0. The pressure of the inowing fluid is at once conveyed through this port to the compartment F, and being opposedl cutting 0E the communication between the compartments V and m and establishing it between V" and P.

the compartment P', the pressure moves theA pistonMto the left and puts the porta' in communication with the inlet K through the compartment V, and the port a in communication with the outlet It, so that the pressure ot' the incoming lluid begins to act upon opposite ends ot' piston I'and force it to the left. This position is shown in Fig. 4. At or near the end of its stroke it establishes communication for the indwing fluid through the port o into the compartment a', whereupon the piston S moves to the right and puts the compartment V in communication with in, so that the piston M is forced to the right in its turn and establishes communication through the compartment V and port n between the inlet K and left end of main cylinder. p

In the water-meter the various cylinders,

The fluid being now let into IOO . e l 249.150 l ports, and passages are or may be made in one casting.

The pistons may be of any suitable construci ciprocations of the piston I, which measures,

the amountof waterowing through the heater, is indicated by the enumerator E, operated by the vibratoryarnl u, which is struck and moved back and forth by the piston I.

The hydraulic motor is shown in Figs. etand 5, combined with a pump. It is adapted for utilizing a small body of Water under a strong headtoraisealargebodyashortdistance. 'IheV piston I is provided with extensions L l', which form the pistons for the pump. -They draw in the Water through the pipe F and expel it into the air-chamber G, from which it passes out by the pipe H. The water for operating the motor enters by inlet K, and after passing through the cylinders escapes by the outlet lt .into the air-chamber G, wherein it mixes with the discharge-Water of the pump. Q Q are the inlet and outlet valves for the pump.

I'nthe direct-acting steam-pump, Figs. 6 and 7, the pumping apparatus is similar to that shown in Figs. 4 and 5. -The construction is, however, specially adapted to prevent as much as possible the condensation ofthe steam. The pistons S M are separated from the air-chamber and inlet and outlet pipes for the Water,

and the steam, after acting iu the main cylin der, is caused to circulate through the chambers m'l surrounding the pump-cylinders and through the interior of the. piston I before escapin g by the outlet R.

lt is obvious that various modifications and alterations could be made in the details of construction ofthe improved valve apparatus without departing from the spirit of this invention.

Having thus fully described my said invention and the manner in which the sanne is or may be carried into effect, what I claim, and desire to secure-by Letters Patent, is-

1. The combination, With a main cylinder piston and ports, of Valve apparatus comprising a piston operated by the pressure of the fluid in the main cylinder, and one or more intermediary pistons controlled by said lastnamed piston, said intermediary piston con.- trolling the admission of the iiuid into the main cylinder, substantially as described.

2. The combination ofthree or more pistons and cylinders, arranged in series, substantially as described, so that each piston controls the position of the succeeding one in the series by direct pressure of Huid without the interventionof levers, sliding or jointed rods, or similar mechanical devices, as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

G.` RO UX. Witnesses G. DUPONT, EM. PITIOT. 

